Home / 107,837,811.20-161,756,716.80-67,023,142.40

Finding the Fourth Proportional to 107,837,811.20, 161,756,716.80 and 67,023,142.40

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Solution

The fourth proportional to 107,837,811.20, 161,756,716.80 and 67,023,142.40 is: 100,534,713.60

Step by Step Solution

  1. Step 1: Write the proportion equation
    107,837,811.20 : 161,756,716.80 = 67,023,142.40 : x
  2. Step 2: Convert to fraction form
    107,837,811.20/161,756,716.80 = 67,023,142.40/x
  3. Step 3: Cross multiply
    107,837,811.20x = 161,756,716.80 × 67,023,142.40
  4. Step 4: Simplify right side
    107,837,811.20x = 10,841,443,464,242,872
  5. Step 5: Solve for x
    x = 10,841,443,464,242,872/107,837,811.20
  6. Step 6: Final answer
    x = 100,534,713.60

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.